IP Library Granted Patent US 7,034,714
Granted Patent B2
US 7,034,714 · App. 10/248,598 · Granted Apr 25, 2006

Vehicle high security piggyback modules

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Quick Facts
Patent No.
US 7,034,714
App. No.
10/248,598
Granted
Apr 25, 2006
Kind
B2
Abstract

A vehicle control system includes a conventional electrical locking system in tandem with a system providing an encrypted code sent along a CAN (Control Area Network) link to unlock the vehicle.

Claims (19)

1. A vehicle high security piggyback module system adapted to be used in conjunction with a double locking latch system for a vehicle, said module system including:

an electrical wiring harness loom;

an information link to carry encrypted actuation signals and conventional electrical actuation signals;

processing software to detect a first encrypted signal and a second conventional signal, and to determine whether or not the first and second signals have been detected within a predetermined period of time; and

authorizing software to permit further activation only if the first and the second signals have been detected within the predetermined period of time.

2. A vehicle high security piggyback module system as recited in claim 1 further including a heartbeat sensor for providing a signal indicating the presence of a heartbeat inside the vehicle, and heartbeat processing means for deactivating locking features if a heartbeat signal is present inside the vehicle, and for activating locking features if no heartbeat signal is present inside the vehicle.

3. A method of controlling actuation of vehicle control systems including the steps of:

generating a first encrypted actuating signal for denoting actuation of a vehicle system;

generating a second conventional actuating signal denoting actuation of a vehicle system;

establishing a predetermined time period during which receipt of the first and second actuating signals is to occur;

sensing a predetermined time period between actuating signals; and

enabling vehicle system actuation if the first and second actuation signals have been received within the predetermined period of time.

4. A method of controlling actuation of a vehicle control system as recited in claim 3 including:

a. identifying vehicle components with an identification signal; and

b. establishing a set time frame within which two actuating signals and an identification signal exchange are required.

5. A vehicle control system including:

a piggyback module to provide (a) authentication of an actuation of an actuation signal and (b) authentication of a vehicle component identification in order to provide control of vehicle systems;

a standard wire harness to provide an activating power to an electronic actuator (window motor, latch motor etc.); and

an encryption module for generating an encrypted control area network (CAN) signal to provide a double check function of actuation of any vehicle component.